The inclusion of the mounting bracket simplifies field installation

While specifically engineered for International Environmental (IEC) units

this unit is engineered for continuous pressure systems such as boiler feed lines

This two-position damper integrates seamlessly with most forced air zoning systems

provided the voltage rating matches or exceeds the original part

Maxitrol M611B-3/4 Valve Freon The inclusion of the mountingThe Maxitrol M611B 3 4 is a precision engineered 3 4" NPT Modulating Gas Valve specifically designed for direct fired burners operating under negative pressure conditions. Built to handle a maximum 1 2 PSI inlet pressure, this Selectra series valve features a unique counter spring mechanism that maintains a secure closed position even against the continuous downward pull of pull through air systems. This design ensures stable flame control in high